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  1. Qt
  2. QTBUG-2960

Suggestion: Extend QPainter and QImage to support a true 8-bit grayscale

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Details

    • Suggestion
    • Resolution: Out of scope
    • P3: Somewhat important
    • Some future release
    • None
    • GUI: Painting
    • None

    Description

      Currently, the only 8bit QImage is QImage::Format_Indexed8. With the right color table, it can be made to act like an 8bit grayscale. However, QPainter does not support drawing on a QImage of QImage::Format_Indexed8. Direct support for QImage::Format_Grayscale would allow for direct manipulation of a QImage that could be used as an alpha channel.

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            sletta Gunnar Sletta
            sthomass Stian Sandvik Thomassen (closed Nokia identity) (Inactive)
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              Updated:
              Resolved:

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